Arcanus academicus Alasmar, Domahovski & Cavichioli, 2025, sp. nov.

Arcanus academicus sp. nov. Figure 38 Diagnosis. Overall coloration (Fig. 38 A – C) reddish mottled with yellowish spots on crown, frons and pronotum; forewings reddish, with yellow veins and spots. Aedeagus (Fig. 38 G) shaft slightly curved ventrally; apex expanded, rounded. Paraphysis (Fig. 38 I), wide basally and narrowing gradually to an acute and well sclerotized apex. Description. Measurements: Holotype male 5.28 mm; paratype male 5.65 mm. — Coloration: Crown (Fig. 38 A), in dorsal view, with black background, mottled with yellow spots, pair of larger black rounded spots behind ocelli, adjacent to posterior margin. Face (Fig. 38 C) mostly black, mottled with yellow spots medially and transverse straps on muscular impressions. Gena black with portion below eye and near lateral margin of frons yellow. Clypeus and lorum without spots. Pronotum (Fig. 38 A), in dorsal view, with several yellow spots, anterior third with pair of large transversal yellowish maculae, arising from lateral margins and almost reaching each other medially, posterior margin reddish. Mesonotum (Fig. 38 A), in dorsal view, with a pair of orangish triangular maculae laterally, yellowish irregular maculae and spots medially, and orangish posteriorly to transverse sulcus. Forewing (Fig. 38 A, B) reddish, with several minute yellow spots, mainly on anterior half; veins yellow, anal margin yellow, apical portion smoky. Thorax (Fig. 38 C), in ventral view, black. Legs with basal portion black, distal portion of coxae whitened, distal portions of fore and mid legs and median portions of hind leg yellowish or reddish. Abdomen black, pygofer pale. Material examined. Holotype: BRAZIL – Paraná • ♂; Curitiba, Centro Politécnico, Biológicas parking; 25°26’49”S, 49°13’54”W; 925 m; Dec. 2022; AC Domahovski & L. Alasmar leg.; DZUP. — Paratype: BRAZIL – Paraná • 1 ♂; same data as holotype; DZUP. Etymology. The epithet “ academicus ” is from Latin and means “ academic ”, an allusion to the type locality of the species, Universidade Federal do Paraná.